I made the right choice.
Ratings
Review
Let me start by saying that SAS isn't perfect for everyone. Alcohol is not allowed on the ship. You can buy a beverage voucher and they'll allow you to have up to two drinks (a glass of wine or a beer) on certain days. The program was perfect for me, and to be honest I wouldn't change anything about it.
Make sure you pick the right classes if you decide to go, as some of the classes are a joke and a lot of busy work. Go for classes that don't sound like BS classes, trust me- they're not what you think they'll be.
On SAS I met so many incredibly awesome people and got to see the world with them. I would definitely do it all over again if I could, and in fact I'm looking into sailing again Summer 2012 (I was on the Spring 2011 voyage).
Good luck.